It is well known that public perceptions of risk and vulnerability about cancer and environment are shaped by peoples' exposure to communication messages. Based on this assumption, the Viswanath Lab addressed two main challenges.

It is well known that public perceptions of risk and vulnerability about cancer and environment are shaped by peoples' exposure to communication messages. Based on this assumption, the Viswanath Lab addressed these two main challenges:

1. how to communicate accurate risk information about cancer and the environment, while taking into account the information environment that is competing and contradicting science-based information
2. how to overcome barriers faced by underserved groups in accessing and using risk information about cancer